My main PFS character is a cleric of Aroden. How do I do it? Simple: All my class levels are in Ranger, but I role-play being a cleric of Aroden. He's in denial that Aroden is dead. He keeps a Wand of Cure Light Wounds up his sleeve so he can call upon his God for healing. He doesn't break any game mechanics or violate the setting's canon.

Paizo did not create the d20 system. Pathfinder is a revised edition of a game that already existed. Paizo is not the creating company. They are 3rd party.

There's nothing wrong with that. I'm a Paizo fan all the way. But there's a lot of great 3rd party material out there. Not allowing 3rd party material into your thread seems a bit too exclusive and not in spirit with Paizo's stance on the OGL, which allows Pathfinder to exist.